I'd started this post quite awhile ago, but comp's still up - and four-plus hours at $15, it's a complete steal. Quite the introduction to a a bunch of heavy-hitters (and some personal faves), and a wide range of weirdo genres: electronics, guitar, minimalism, drone, some noise, even a little "rock" music.

Something(s) along the lines of this...

"Cassiopeia" by Grouper, from Benefit for the Recovery of Japan (2011)